Add release script for duniter modules
- https://github.com/duniter/duniter-bma
- https://github.com/duniter/duniter-keypair
- https://github.com/duniter/duniter-ui
- https://github.com/duniter/duniter-crawler
- https://github.com/duniter/duniter-prover
- https://github.com/duniter/duniter-common
So anybody can modify them (in the duniter team) and make them available for next builds.